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8.3 Power and efficiency

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Question 35
F

A motor transfers 3600 J usefully in 24 s. What is its useful power output?

[1]
A

0.0067 W0.0067\ \mathrm{W}0.0067 W

B

3576 W3576\ \mathrm{W}3576 W

C

86 400 W86\,400\ \mathrm{W}86400 W

D

150 W150\ \mathrm{W}150 W

Markscheme

8.3 Power and efficiency Questions

  1. GCSE
  2. /Physics
  3. /8.3 Power and efficiency

128 exam-style questions on Edexcel GCSE Physics 8.3 Power and efficiency, covering 8.3.1 Power and 8.3.2 Efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

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